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Actinolite

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SHS182360

Actinolite

ex Collection Dr. Brandt (Northeim/Germany)
With Antique Label

Description Tabs

Description
Locality: 
Hirschau Quarry, Böckstein, St Johann im Pongau District, Salzburg, Austria
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 5.9 × 4 cm
Description

Nice actinolite in talcum

Mineral Data
What's on the rock

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Crystal System: 
Monoclinic - Prismatic
Hardness: 
5.0 - 6.0
Streak: 
White